make shared_ptr not use delete

boost::shared_ptr<T> ptr( new T, std::mem_fun_ref(&T::deleteMe) );
boost::shared_ptr<S> ptr( new S, std::ptr_fun(lib_freeXYZ) );

void Deleter( T* ptr);

boost::shared_ptr<T> ptrToT( new T, Deleter );

void Deleter( T* ptr);
   {
        ptr->deleteMe();
        // And make sure YOU ACTUALLY DELETE (or do whatever else you need to
        // do to release the resource)
        delete ptr;
   }

void intrusive_ptr_add_ref(foo *f) {
    lib_add_ref(f);
}

void intrusive_ptr_release(foo *f) {
    if(lib_dec_ref(f) == 0)
        lib_free(f);
}

intrusive_ptr<foo> f(lib_alloc());

// can wrap raw pointers too, which already may be referenced somewhere else
foo *p = get_foo_from_somewhere();
function_taking_intrusive_ptr(p);